(19)

(11)

EP 0 680 406 A1

(12)

(43) Date of publication: 08.11.1995 Bulletin 1995/45 (21) Application number: 94905605.0 (22) Date of filing: 12.01.1994

(51) International Patent Classification (IPC):  C08J 9/ 00( . ) B29C 47/ 00( . ) B29C 55/ 22( . ) B29C 59/ 04( . ) B29C 44/ 56( . ) B29C 55/ 00( . ) B32B 5/ 18( . ) (86) International application number: PCT/US1994/000449 (87) International publication number: WO 1994/015781 (21.07.1994 Gazette 1994/17)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 15.01.1993 US 19930005482 (60) Divisional application: 01203375.9 / 1163991 (71) Applicant: IMPRA, INC. Tempe, AZ 85281 (US)	(72) Inventors: KOWLIGI, Rajagopal, R. Phoenix, AZ 85044 (US) BIBEAU, John, M. Burlington, MA 01803 (US) TAYLOR, Howard, H. Tempe, AZ 85282 (US) (74) Representative: Coxon, Philip, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)